diff --git a/lib/prism/translation/parser/compiler.rb b/lib/prism/translation/parser/compiler.rb
index 9dd20baeb4d72a..3ce62bb8f1e71a 100644
--- a/lib/prism/translation/parser/compiler.rb
+++ b/lib/prism/translation/parser/compiler.rb
@@ -255,7 +255,7 @@ def visit_call_node(node)
             when :!
               return visit_block(builder.not_op(token(node.message_loc), token(node.opening_loc), visit(node.receiver), token(node.closing_loc)), block)
             when :=~
-              if (receiver = node.receiver).type == :regular_expression_node
+              if (receiver = node.receiver).is_a?(RegularExpressionNode)
                 return builder.match_op(visit(receiver), token(node.message_loc), visit(node.arguments.arguments.first))
               end
             when :[]